Go Premium for a chance to win a PS4. Enter to Win

x
?
Solved

StringList or Memo Print

Posted on 2000-04-03
7
Medium Priority
?
590 Views
Last Modified: 2010-04-04
Could you please help me to print
a textfile loaded in a stringlist or
in a memo ?

Regards,

Pascal
0
Comment
Question by:F31203
  • 4
  • 2
7 Comments
 
LVL 9

Expert Comment

by:ITugay
ID: 2679822
Why you don't use Quick Reporst and TQRMemo?

---
Igor.
0
 
LVL 2

Expert Comment

by:PeterLarsen
ID: 2679864
- or TRichEdit
/PL
0
 
LVL 9

Expert Comment

by:ITugay
ID: 2679887
Exactly from Borland
-----------------------
TI785D.txt   Printing the contents of a TMemo or TListbox
    Category   :VCL
    Platform    :All
    Product    :Delphi  All

    Description:
    Q: How can I print all of the lines within a TMemo or TListbox component?

    A: The function below accepts a TStrings object as a parameter and prints
       out each string to the default printer.  Because it uses a TStrings, the
       function will work with any type of component that contains a
       TStrings-type property, such as a TDBMemo or TOutline.

    { Begin code listing }

    uses Printers;

    procedure PrintStrings(Strings: TStrings);
    var
      Prn: TextFile;
      i: word;
    begin
      AssignPrn(Prn);
      try
        Rewrite(Prn);
        try
          for i := 0 to Strings.Count - 1 do
            writeln(Prn, Strings.Strings[i]);
        finally
          CloseFile(Prn);
        end;
      except
        on EInOutError do
          MessageDlg('Error Printing text.', mtError, [mbOk], 0);
      end;
    end;

    { End code listing }

    To print out the contents of a TMemo or TListbox, use the following
    code:

    PrintStrings(Memo1.Lines);

    or

    PrintStrings(Listbox1.Items);


------
Igor.
0
What does it mean to be "Always On"?

Is your cloud always on? With an Always On cloud you won't have to worry about downtime for maintenance or software application code updates, ensuring that your bottom line isn't affected.

 

Author Comment

by:F31203
ID: 2680169
In fact, it is a console application.
When I try your code, I receive the following message :

Exception EInvalidOperation.
Control '' has no parent window.

Any idea of what it is ?

Pascal
0
 
LVL 9

Expert Comment

by:ITugay
ID: 2680212
I will check it........
0
 
LVL 9

Accepted Solution

by:
ITugay earned 200 total points
ID: 2680255
This sample working fine:
---------------
program p3;
{$APPTYPE CONSOLE}
uses SysUtils, Printers, Classes, Dialogs;

procedure PrintStrings(Strings: TStrings);
var
  Prn: TextFile;
  i: word;
begin
  AssignPrn(Prn);
  try
    Rewrite(Prn);
    try
      for i := 0 to Strings.Count - 1 do
        writeln(Prn, Strings.Strings[i]);
    finally
      CloseFile(Prn);
    end;
  except
    on EInOutError do
      MessageDlg('Error Printing text.', mtError, [mbOk], 0);
  end;
end;

var L : TStringList;

begin
  L := TStringList.Create;
  L.Add('0');
  L.Add('1');
  L.Add('2');
  L.Add('3');
  PrintStrings(L);
  L.Free;
end.
---------
You may get some problems if you do something like this:

  M:=TMemo.Create(nil);
.....
  PrintStrings(M.Lines);
-------
Try to avoid of creating visual components in console application, especially if it need parent form.
------
Regards,
Igor.



0
 

Author Comment

by:F31203
ID: 2680564
Thanks for your help Igor,

Pascal
0

Featured Post

Hire Technology Freelancers with Gigs

Work with freelancers specializing in everything from database administration to programming, who have proven themselves as experts in their field. Hire the best, collaborate easily, pay securely, and get projects done right.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

This article explains how to create forms/units independent of other forms/units object names in a delphi project. Have you ever created a form for user input in a Delphi project and then had the need to have that same form in a other Delphi proj…
Introduction The parallel port is a very commonly known port, it was widely used to connect a printer to the PC, if you look at the back of your computer, for those who don't have newer computers, there will be a port with 25 pins and a small print…
Exchange organizations may use the Journaling Agent of the Transport Service to archive messages going through Exchange. However, if the Transport Service is integrated with some email content management application (such as an anti-spam), the admin…
Is your data getting by on basic protection measures? In today’s climate of debilitating malware and ransomware—like WannaCry—that may not be enough. You need to establish more than basics, like a recovery plan that protects both data and endpoints.…

885 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question